    .big{
     	width: 1000px;
     	height: 5000px;
     	margin: 0 auto;
     	background: #7F7F7F url() 0 0 no-repeat;
      margin-top: -8px;
      margin-bottom: -8px;
       padding: 0 auto;

     }
     /*网页顶部开始*/
    .big .top_roof{
     	width: 100%;
     	height: 90px;
     }
     .big .top_roof .logo{
     	width: 210px;
     	height: 90px;
     	background: #6A2020 url() 0 0 no-repeat;
     	display: inline-block;
     	margin-left: 95px;
     }
      .big .top_roof .sougou{
      	width: 450px;
      	height: 90px;
      	background: #F89191 url() 0 0 no-repeat;
      	display: inline-block;
      }
      .big .top_roof .denglu{
      	width: 220px;
      	height: 90px;
      	background: #EB0909 url() 0 0 no-repeat;
      	display: inline-block;
      }
      /*网页顶部结束*/
      /*网页导航开始*/
      .big .nav{
      	width: 1000px;
      	height: 65px;
      }
      .big .nav .headline{
      	width: 125px;
      	height: 65px;
      	background: #131010 url() 0 0 no-repeat;
      	display: inline-block;

      }
      /*网页导航结束*/
      /*广告*/
      .big .ad{
      	width: 1000px;
      	height: 90px;
      }
       .big .ad .ad1{
       	width: 700px;
       	height: 90px;
       	background: #FF7F27 url() 0 0 no-repeat;
       	float: left;
       }
       .big .ad .ad2{
       	width: 280px;
       	height: 90px;
       	background: #99D9EA url() 0 0 no-repeat;
       	float: right;
       }
       /*广告*/
       /*网页第1大块开始*/
       .big .main1{
       	width: 1000px;
       	height: 1080px;
       }
       .big .main1 .news1{
       	width: 355px;
       	height:100%;
       	float: left;
       }
       .big .main1 .news2{
       	width: 355px;
       	height:100%;
       	float: left;
       }
       .big .main1 .other{
       	width: 275px;
       	height: 100%;
       	float: left;
       }
       .big .main1 .news1 .news{
       	width: 355px;
       	height: 355px;
       	background: green url() 0 0 no-repeat;
       	margin: 10px;
       }
       .big .main1 .news2 .news{
       	width: 355px;
       	height: 355px;
       	background: #DC2E2E url() 0 0 no-repeat;
       	margin: 10px;
       }
       .big .main1 .other .serve{
       	width:275px;
       	height:355px;
       	background: #5E333D url() 0 0 no-repeat; 
       	margin: 10px;
       }
       .big .main1 .other .new_ad{
       	width: 275px;
       	height: 355px;
        background: #3C893B url() 0 0 no-repeat;
        margin: 10px;
       }
       .big .main1 .other .gupiao{
       	width: 275px;
       	height: 200px;
       	background: #075406 url() 0 0 no-repeat;
       	margin: 10px;
       }
       .big .main1 .other .xingzuo{
       	width: 275px;
       	height: 135px;
       	background: #000000 url() 0 0 no-repeat;
       	margin: 10px;
       }
       /*网页第1大块结束*/
       /*广告*/
       .big .taobao_ad{
       	width: 100%;
       	height:110px;
       	background: #4CCC3F url() 0 0 no-repeat;
            margin-top: 20px;
       }
       /*广告*/
       /*网页第二大块开始*/
       .big .main2{
       	width: 100%;
       	height: 620px;
       }
       .big .main2 .news1{
       	width: 100%;
       	height:302px;
       }
       .big .main2 .news2{
       	width: 100%;
       	height:302px;
       	margin-top: 15px;
       }
       .big .main2 .news1 .main2_news{
       	width: 320px;
       	height: 300px;
       	background: #F81D1D url() 0 0 no-repeat;
       	float: left;
       	margin: 5px;
       }
      .big .main2 .news2 .main2_news{
        width: 320px;
       	height: 300px;
       	background: blue url() 0 0 no-repeat;
       	float: left;
       	margin: 5px;
      } 
      /*网页第二大块结束*/
      /*NBA版块*/
      .big .nba{
      	width: 100%;
      	height: 220px;
      	background: #FFF200 url() 0 0 no-repeat;
            margin-top: 15px;
            margin-bottom: 15px;

      }
      .big .nba .nba_news{
      	width: 315px;
      	height: 195px;
      	background: #fff url() 0 0 no-repeat;
      	float: left;
      	margin:5px;
      }
      /*NBA版块*/
      /*广告*/
      .big .ruliu_ad{
      	width: 100%;
      	height: 105px;
      	background: #22B14C url() 0 0 no-repeat;
      }
      /*广告*/
      /*网页第三大块开始*/
      .big .main3{
      	width: 100%;
      	height: 620px;
      }
      .big .main3 .news1{
      	width: 100%;
      	height: 305px;
      }
      .big .main3 .news1 .main3_news{
      	width: 310px;
      	height: 300px;
      	background: blue url() 0 0 no-repeat;
      	float: left;
      	margin:8px;
      }
       .big .main3 .news2 .main3_news{
      	width: 310px;
      	height: 300px;
      	background: red url() 0 0 no-repeat;
      	float: left;
      	margin:8px;
      }
      /*网页第三大块结束*/
      /*广告*/
      .big .zixuangu_ad{
      	width: 100%;
      	height: 105px;
      }
      .big .zixuangu_ad .gupiao_ad{
      	width:670px;
      	height: 105px;
      	background: #0BA7EF url() 0 0 no-repeat;
      	float: left;
      }
      .big .zixuangu_ad .book_ad{
      	width: 250px;
      	height: 105px;
      	background: #1106EE url() 0 0 no-repeat;
      	float: left;
      	margin-left: 20px;
      }
      /*广告*/
      /*网页第四大快开始*/
      .big .main4{
      	width: 100%;
      	height:960px;
      }
      .big .main4 .main4_news1{
      	width: 310px;
      	height: 100%;
      	float: left;
            margin-bottom: 15px;
      }
      .big .main4 .main4_news2{
      	width: 310px;
      	height: 100%;
      	float: left;
            margin-bottom: 15px;

      }
      .big .main4 .main4_news3{
      	width: 310px;
      	height: 100%;
      	float: left;
            margin-bottom: 15px;
      }
      .big .main4 .main4_news1 .main4_news1_news{
      	width: 244px;
      	height: 238px;
      	background: #072DEB url() 0 0 no-repeat;
      	margin-top: 5px;
      }
      .big .main4 .main4_news2 .main4_news2_news{
      	width: 244px;
      	height: 238px;
      	background: #072DEB url() 0 0 no-repeat;
      	margin-top: 5px;
      }
      .big .main4 .main4_news3 .main4_news3_news{
      	width: 244px;
      	height: 238px;
      	background: #072DEB url() 0 0 no-repeat;
      	margin-top: 5px;
      }
      /*网页第四大块结束*/
      /*网页第五大块开始*/
      .big .mainn5{
      	width:100%;
      	height: 405px;
      }
      .big .main5 .news1{
      	width: 100%;
      	height: 210px;
      }
      .big .main5 .news1 .main5_news{
      	width: 320px;
      	height: 210px;
      	background: #F52B2B url() 0 0 no-repeat;
      	float: left;
      	margin-top: 20px;
      	margin: 5px

      }
      .big .main5 .news2{
      	width: 100%;
      	height: 180px;
      }
      .big .main5 .news2 .main5_jiaodian{
      	width: 155px;
      	height: 180px;
      	background: #E2D710 url() 0 0 no-repeat;
      	float: left;
      	margin: 5px;
      }
      /*网页第五大块结束*/
      /*广告*/
      .big .foot_ad{
      	width: 100%;
      	height: 100px;
      	background: #0A0D9C url() 0 0 no-repeat;
      	margin-top: 55px;
      }
      /*广告*/
      /*网页底部开始*/
      .big .foot{
      	width: 100%;
      	height: 200px;
      }
      .big .foot .foot1{
      	width: 100%;
      	height: 110px;
      	background: #10D94B url() 0 0 no-repeat;
      	margin-top: 10px;
      }
      .big .foot .foot2{
      	width: 100%;
      	height: 82px;
      }
      .big .foot .foot2 .baojin{
      	width: 130px;
      	height: 82px;
      	background: #fff url() 0 0 no-repeat;
      	margin:5px;
      	float: left;
      }
      /*网页底部结束*/

